package com.springboot.controller;

import com.springboot.config.ProjectUrlConfig;
import com.springboot.enums.ResultEnum;
import com.springboot.exception.SellException;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpInMemoryConfigStorage;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;


@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {
    private static final String DEFAULT_CHARTSET = "utf-8";

    @Autowired
    private WxMpService wxMpService;

    @Autowired
    private WxMpService wxOpenService;

    @Autowired
    private ProjectUrlConfig projectUrlConfig;

    @GetMapping("/authorize")
    public String authorize(@RequestParam("returnUrl") String returnUrl) throws UnsupportedEncodingException {
        String url = "http://cai.s1.natapp.cc/sell/wechat/userinfo";
        String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAuth2Scope.SNSAPI_USERINFO, returnUrl);
        log.info("[微信网页授权] 获取code,result={}", redirectUrl);
        return "redirect:" + redirectUrl;

    }

    @GetMapping("/userinfo")
    public String userInfo(@RequestParam("code") String code, @RequestParam("state") String returnUrl) throws UnsupportedEncodingException {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.info("[微信网页授权] {}", e);
            throw new SellException(ResultEnum.WXCHAT_MP_ERROR.getCode(), e.getError().getErrorMsg());
        }
        String openId = wxMpOAuth2AccessToken.getOpenId();

        return "redirect:" + returnUrl + "?openid=" + openId;

    }

    @GetMapping("/qrAuthorize")
    public String qrAuthorize(@RequestParam("returnUrl") String returnUrl) {
        String url = projectUrlConfig.getWechatOpenAuthorize() + "/sell/wechat/qrUserInfo";
        String redirectUrl = null;
        try {
            redirectUrl = wxOpenService.buildQrConnectUrl(URLEncoder.encode(url,"utf-8"), WxConsts.QrConnectScope.SNSAPI_LOGIN, returnUrl);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        log.info("redirectUrl={}", redirectUrl);
        return "redirect:" + redirectUrl;
    }

    @GetMapping("/qrUserInfo")
    public String qrUserInfo(@RequestParam("code") String code,
                             @RequestParam("state") String returnUrl) {
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try {
            wxMpOAuth2AccessToken = wxOpenService.oauth2getAccessToken(code);
        } catch (WxErrorException e) {
            log.error("【微信网页授权】{}", e);
            throw new SellException(ResultEnum.WXCHAT_MP_ERROR.getCode(), e.getError().getErrorMsg());
        }
        log.info("wxMpOAuth2AccessToken={}", wxMpOAuth2AccessToken);
        String openId = wxMpOAuth2AccessToken.getOpenId();
        return "redirect:" + returnUrl + "?openid=" + openId;
    }


}
